|Posted on Wednesday, July 11, 2018 - 03:48 pm: ||
Just had the bike receive its 20k service. I have ridden it maybe 70 miles and the check engine light turned on. I am only getting one trouble code:
I then started the bike and monitored the F ADAPT FUEL = 76.0 & R ADAPT FUEL = 103.5.
It has a K&N Filter, 91 octane is the fuel placed in the bike and I am at an elevation of 4,500ft. Original stock ECM. I am the 5th owner of the bike as well and just bought it. I have only placed maybe 200 miles on the bike. No trouble codes when I purchased it. The ride home was over an hour long. Code did not happen until I had the bike serviced; 50 miles since service.
Thank you for your help.
|Posted on Wednesday, July 11, 2018 - 03:55 pm: ||
Welcome to the board.
The error is from there being too large of a difference in the adaptive fuel ratios of the front vs rear cylinders.
Do you have the stock exhaust? It is common for aftermarket exhausts to cause that issue. If you are still on the stock exhaust, you can try riding it some more, it may just need more time to compensate for your altitude. (I've had my bikes complain for a short while after trailing from sea level up into the mountains).
If it has an aftermarket exhaust, that is likely compounding the issue and a Race ECM would take care of it.
There is also a chance that you have an exhaust leak, but I'd start with just riding more first.
|Posted on Wednesday, July 11, 2018 - 04:28 pm: ||
Thank you for the warm welcome and your help. It is greatly appreciated.
The altitude is the same as where I purchased the bike. The ride home was at least 65 miles, plus I placed another 30 miles on it by ridding it to the Harley Dealer to be serviced. I had them do the following: Replace the plugs, clean the air cleaner, drain and replace the coolant, drain the oil and replace the oil filter, replace the front seals on the shocks and fluid.
I then rode it another 60 miles and that is when the Check Engine light came on.
I am wondering if it had anything to do with the service. I know they have to drop the engine to change the plugs and am wondering if the sensors just need to reset or if there is another issue.
|Posted on Saturday, July 14, 2018 - 11:01 pm: ||
Are you having running issues,front AFV of 76 is O2 sensing Lean (or to much oxygen. The ECM will add more fuel. The rear AFV is 103 this looks good. How is your Idle?
|Posted on Sunday, July 15, 2018 - 05:48 am: ||
Clean all grounds with scotch bright then apply dielectric grease.Use your electric manual to identify there location. Also are you having any idle or riding issues with your front cyl being lean
|Posted on Sunday, July 15, 2018 - 07:45 am: ||
What your looking for are chassis grounds not just battery ground. These are grounds that usually go directly to the ECM. Visually they may look ok but any slight resistance between the aluminum bike frame and the metallic connector can make the ECM cause issues.
|Posted on Thursday, July 19, 2018 - 02:06 pm: ||
First, Thank you all for you wisdom and guidance in helping me solve the issue with my Buell 1125r. It is much appreciated.
I was able to find the problem(s). First, like Gabby duck mentioned, O2 Sensor issue. The sensor was fine when it was brought in for service, but when released after the 20k service; there were a number of items not done correctly. One being the O2 Sensor was not correctly place back/zip tied.
Notice it hanging in front of the exhaust manifold. When I would accelerate, it would press against the exhaust manifold, then if finally melted the connection and shorted it out.
Wire harness was not placed back into the tray nor was one of the clips for an additional sensor.
Once of the AirBox bolts was stripped out.
Then the best for last... The oil was filled completely to the top of the dipstick/fill port.... this is mechanicl/tech school 101.
I will give credit to Harley Davidson though. When I called and explained the situation, spending $1,215 to have the bike serviced and completely gone through. If they found anything wrong or might be needing repair, I authorized it. Then getting it back in this condition. The Service Manager apologize profusely. They picked up the bike at my house and are going through it from front to rear and he personally is over seeing this.
It is not how you start, but how you finish that concerns me. I have a saying that I use with my employees "slow is deliberate, deliberate is accurate, accurate is fast."
Thank you all again, I will let you know how it finishes. Hopefully there will still be summer left to ride...